Window structure



Nov. 13, 195] J. KIEFER WINDOW STRUCTURE Filed April 50. 1946 INVENTORPatented Nov. 13, 1951 UNITED STATES PATENToFFicE 2,574,742,f j e vwmnowsmvcrnna u Augustine John Kiefer, rmsp 'rgii, re. Application Aprilso, 1946, s r ii-iwii. 665,965

Y My invention consists in a, new and improved window structure,including a frame and sash slidingly mounted therein.

One of the objects of my invention is the provision of a windowstructure of frame and slidingsash which may be either installed in awindow opening or installed in the usual window frame as for instance inconnection with storm windows, from which the sash are usually removedin warm weather.

Another object is the provision of means for sustaining the sash in theframe at a selected elevation without the use of counterbalancing meanssuch as cords and weights. Another object is the provision of mean forinstalling the sash in the frame and removing them therefrom quickly andconveniently and without the use of tools.

Another object is the provision of a Window structure in which thewindows may be mounted to slide easily where the frame is out of true.

Other objects will appear from thefollowing description.

In the accompanying drawings, wherein is i1- lustrated a practicalembodiment of the principles of the invention,

Fig. 1 is an inside elevation of a window to which the invention isapplied;

Fig. 2 is a broken perspective of one of the auxiliary window stiles,interior parts being indicated in dotted lines; I

Fig. 3 is an enlarged vertical section taken along the line 3-3 in Fig.1 showing the lintel portion of the window frame, the inner windowframe, in the illustrated embodiment of the inventi'on;

Fig. 4 is a similar view taken along the line 4-4 in Fig. 1, showing thesill portion ofathe same;

Fig. 5 is a similar'view taken along the line 5-5 in Fig. 1 showing therelationof the meeting rails of the upper and lower sash;

Fig. 6 is a fragmentary perspective of the meeting rail of the lowersash;

Fig. '7 is a perspective of the meeting-rail of the upper sash; I

Fig. 8 is an enlarged horizontal section taken along the line 8-8 inFig. 1 illustratingfthe method of mounting the sash in place anddismounting it therefrom; r Fig. 9 is a view illustrating several formsfor 1 Claim. (ciao-5512.2")

ing as illustrated in Fig. 1 is provided with the conventionalstationarywindow frame compris- '-'ing the sill In, the lintel H, and the verticalstiles l2.

Within the stationary frame there is installed,

'preferablyremovably, an inner window frame, I which-may be' formedconveniently of sheet metal,

andwhi-ch comprises a sill IS, a lintel i4 and the vertical auxiliarystiles i5.

r The sill i3 and the lintel [4 may be, as show in Figs. 3- and 4respectively, of similar cross sectionalform but inversely disposed.

" Thus the sill I3 is provided along its top surface with a pair ofparallel'vertical flanges extending longitudinally of the sill, theflange I6 "extending along the inner side of the sill and the flange i1parallel with flange it but spaced therefrom'. When the lower sash l8 ofthe window is in its closed position, as indicated in Fig. 4, the outeiv ertical surface of the bottom bar IQ of "thesash snugly engages theinner vertical face of the flange [6 while the flange I1 is telescopedfrom-above by the slot 20 formed in the lower facefof thesash bar I9,thus forming a weather rain the top wall of the sill l3 preferably isinclined downwardly from the flange I? to the outer edge of the sill.

The lintel} M of the inner frame is disposed in a position the reverseof that of the sill l3, the

flange IFbeing'at the outer side,'asil1ustrated in Fig. '3, and when theupper sash 2| is closed the face of the flange l6 fits against thevertical face of the top'bar 22 of the upper sash, while the I flangeI'i engages a slot 23 in said bar, thus forma weather tight seal betweenthe sash and the lintel.

rein-tenet to Figs. 5, 6 and 7, 24 indicates ."themeeting rail of thelower sash i8, and 25 the ne'eting railof thetop sash 2|. These railsare of "greaterthickness than the lower bar of the (I lower sash and theupper bar of the upper sash, thusbridging the space between the sashcorresponding tothe combined width of the parting strip sections of thestile later to be described.

The lower portion of the outer face of the ,m eting rail Zi'is'cut awayto form a recess 26 to provide clearance, when the sash are closed and,the meeting rails are in their relative positions show'ninFig 5, forthe inner extending troughj; like: extension 2 of the rail 25.

indicates a resilient metal packing strip eating finals-sha e rase.adieu. were. at

urged'outwardly to protrude from theopen fronts its upper portion to theinner face of rail 25 and depending within the trough of extension 21.while 29 indicates a like packing strip attached to the outer face ofrail 24 and extending down within the reces so as to engage and nest inthe packing strip 28 as shown in Fig. 5, when the sash are both in theirclosed position.

Adjacent each end of the sill l3 and of the lintel [4, the flanges l6and H are omitted so that the ends of 'tlrersill and xlinte'l may betelesc'oped into the auxiliary stiles l5 andbe secured therein as bywelding or riveting. Likewise the extra, width of the meeting rails ofthe lower and upper sash is reduced to the width of the bars s -|Qa;ng1' 22, to provide clearance for the parting stripsections, asindicated at 3B in FigsJSahfiW;

The auxiliary stiles 15 may -be-formed conven iently by bending up astrip of metal of the proper length and width to a rectangular crosssectional shape comprising a closed rear wall, parallel side walls andan open front.

The inner frame formed by thee-sill 13, the lintel l4 and theauxiliarystiles l5, connected =tgether at their extremities is of theproperexterior dimensions as to fit in the aouter window frame or windowopening, as the case may :be, and may be held in position by anyconvenient-means suchras resting. inwardly of theibuildingaagainst thevertical strips 3! secured tofaces of the stiles l2, as by means of thescrews 32 extendingqfrom without through the spaced side walls of theauxiliary stiles l and driven into the strips ,-3l.

, Adjacent their outer vertical edges the side walls of the auxiliarystiles l5 are provided with internal shoulders or stops 33, which whenthe auxiliary stiles are formed'of sheetmetalnnaybe produced by foldingthemetal inwardly and backwardly against the'inner surfaces of thesidewalls as shown in Figs. 2 and'8.

34 indicates a metal bar mounted in the in- 'terior of each of theauxiliary stiles and extending longitudinally therein in front of thescrews 32. The bars 34 are of T-cross sectional shape, the stem "35 ofthe T extendin'gtowariijthe open fronts of the auxiliary stiles, andt'hei'base of the stem being enlarged laterally t'offolf'm "a doublestop 36. V

'31 indicates apair'o'f bars mounted in eachof the auxiliary stiles 15,one on eitherf'side 'of"'the vertical edge with nangesbs'proje'e'tingiaterany flange 38 by engagement with thestop 3'3preventsaccidental disassemblage of the parts relativeto 'theauxiliarystile.

The members 31 are elongated bars ext'enfding up through the auxiliarystiles, 'aniljthey are of 'theauxiliary stiles by 'averti'cal series ofTbo'wed 'leaf springs 39 riveted 'or'oth"erwise js'ecured at theircenters to the front f ace of the b'ar BF-with their'e'nds bearingagainst the'backsdftlrefmembers 31.

The "front fedges "of the members- 31 areipro- 'videii centrall'y'withaverticalfbeadilqwhich engagejsjvertical slots 41 jin'tlie edgejfof*tlfesash,

"thus slidably supporting the sajslrin the frame. I

The members '31 are also provided with direct shoulders 42 which mate inpairs, as sliown jin Fig.2 to form a sectionalparting stri j 'tween theupper "and lower *sashfthe parting strlpf sec tionslTmovin-g inwardlyandofltwar'dly'inmnisom 4 with the beads 40, both being portions of thecorresponding members 31.

It is thus seen that the upper and lower sash are mounted for verticalsliding movement on either side of the sectional parting strips.

If desired, the sliding connection between the members 31 and the sash,instead of being a bead and groove, may be formed of arcuate or angularconvex and concave surface of the member 31 and 't'he 'edge ofithesashiaslin'dicated in Fig. 9.

FigfB illustrates the method of installing a sash,

in the illustration the lower sash l8, in the frame. The sash is firstpresented in the horizontally tilted-. position shown and one of itsgrooved edges,

the left in the view, is engaged with the bead 40 and=the= sashis thenpushed to the left until the member 31 is caused to retreat sumcientlyinto its auxiliary stile 'to'p'ermit the window to be swun inwardly toengage the groove dl on the right hand edge of the window with the beadon the corresponding-member (FL The leaf-springs at eithersidewill thenautomatically centei' the sash in position. In installing the sash,theupper ehsi fir tp tint ip t 1 The removal of -a sash .is accomplishedby reversing the above-described operation, the sash lbeing first,pushed in one direction .to retreat ,the corresponding member 3.!sufficiently .;to,. permit -the lothersedge of the-sash to .be releasedand the sash is then lifted out. In removing the-sash the :lower one isfirst removed.

The -forming of the p artingstrip of two-cooperating; sections,.-eachmoving with the member 31, renders the insertion of -a;sash intoand-itsreemovalirom ,the frame much more' easyas there -is--n o-;chanceof the sash jamming.;against:a stationary-yparting strip. I y

The pressure of the springs :39 lactto hold the Ksashdnpositionwithoutthe useof counterbalance meanslsuch as cords and weights.

while the invention is particularly; advantageous-for the installationof stormavindowsthe inner frame being mounted in the ,permanentvlndowiframegas illustrated in the drawings the framehereinbefore,referredto as the .inner frame, formed of the si1l I3,the-lintelil lqand the ;auxiliary -,stiles i5, may be installed in-janywindow opening in :theabsence-of a permanent ndow ram a v z- Screen;sashes may :be substituted .forljtheywim dow sash shown.

While the Sash :shown, :are 'of :wood, the asame nnay -be: of metal orother ,suitablezmateriaL; and wood/may:beusedzas :theimaterialpfrtheiframe z ndz sc iatedlpartsi a It is evident from the above thatmycinvenltion; provides an inexpensive yet 1 substantialgand-(IUIfabIG-fWiIlGOW. structure, :wherein J the -:sash, screens, or othersliding closures may be :readi-ly ,iin'stalled, rand removed t whendesired.

. alt: isralsozapparent that byameans of. the: present inventionShdingrWiIIdONS may be successfully sinsetin 'a frame whichisdistorted,505845130 be out of line, owing to theflexibility ofthesmeans .formounting thesash, in the frame,

I claim: A window sash-attachment comprising opposed stilesin, the formof: inwardly open-channels constructed tov be secured to apermanentwindow frame, a'bar of T-shaped cross section dividing each of saidchannels into like vertical cavities with theT-head bar being shorterthanethe depth or ,the channel to form a stop, an iauxiliarystilemounted in each 'cavity and each having afbead to-fit andguide' awiudowsaslr; resilientmeans to 5 urge said auxiliary stiles outwardly ofthe channel against a window sash, an offset shoulder on each of theadjacent sides of the auxiliary stiles in each channel which ofisetshoulders mate in pairs to lie against each other to seal and form asectional parting strip, and a flange extending from adjacent the rearedge of each auxiliary stile and. in alignment with its offset shoulder,said offset shoulder and flange of each auxiliary stile cooperating withsaid T-head stop to limit the inward and outward movement of theauxiliary stile in the channel. I

AUGUSTINE JOHN KIEFER.

6 REFERENCES orrsn The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 2,075,832 Seligman Apr. 6, 19372,203,427 Dautrick June 4, 1940 2,288,558 Vose June 30, 1942 2,303,129Kurtz Nov. 24, 1942 2,394,979 Buckner Feb. 19, 1946 2,451,654 Beil Oct.19, 1948

